Index: /CKEditor/trunk/_source/plugins/wysiwygarea/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/wysiwygarea/plugin.js	(revision 3644)
+++ /CKEditor/trunk/_source/plugins/wysiwygarea/plugin.js	(revision 3645)
@@ -15,4 +15,6 @@
 	 */
 	var nonExitableElementNames = { table:1,pre:1 };
+	// Matching an empty paragraph at the end of document.
+	var emptyParagraphRegexp = /\s*<(p|div|address|h\d|center)[^>]*>\s*(?:<br[^>]*>|&nbsp;|&#160;)\s*(:?<\/\1>)?\s*$/gi;
 
 	function onInsertHtml( evt )
@@ -479,4 +481,8 @@
 									data = editor.dataProcessor.toDataFormat( data, ( editor.config.enterMode != CKEDITOR.ENTER_BR ) );
 
+								// Strip the last blank paragraph within document.
+								if ( editor.config.ignoreEmptyParagraph )
+									data = data.replace( emptyParagraphRegexp, '' );
+
 								return data;
 							},
@@ -556,2 +562,10 @@
  */
 CKEDITOR.config.disableNativeSpellChecker = true;
+/**
+ * The editor will post an empty value ("") if you have just an empty paragraph on it, like this:
+ * @example
+ * <p></p>
+ * <p><br /></p>
+ * <p><b></b></p>
+ */
+CKEDITOR.config.ignoreEmptyParagraph = true;